Cisco Unified Communications Manager — Cyber Threats, Attacks & Incidents

Related Threat Clusters

• Critical Zero-Day Vulnerability CVE-2026-20182 Exploited in Cisco SD-WAN Systems

  Cisco has disclosed a critical authentication bypass vulnerability, CVE-2026-20182, affecting its Catalyst SD-WAN Controller and Manager. This flaw allows unauthenticated remote attackers to bypass authentication and…

  131 articles · Updated May 14, 2026
• Cisco Confirms Active Exploitation of Unified CM Vulnerability CVE-2026-20230

  Cisco has confirmed that attackers are exploiting a vulnerability in its Unified Communications Manager (Unified CM), tracked as CVE-2026-20230, which was patched on June 3, 2026. This vulnerability allows for…

  2 articles · Updated July 2, 2026
• Critical SSRF Vulnerability in Cisco Unified CM Exposes Enterprises to Root Access

  Cisco disclosed a critical server-side request forgery (SSRF) vulnerability in its Unified Communications Manager (CVE-2026-20230) on June 3, 2026. This flaw allows attackers with network access to write arbitrary files…

  8 articles · Updated June 4, 2026
• Critical RCE Vulnerability in BeyondTrust Software Requires Immediate Patching

  BeyondTrust has issued a warning regarding a critical remote code execution (RCE) vulnerability in its Remote Support and Privileged Remote Access software. The flaw, tracked as CVE-2026-1731, allows unauthenticated…

  722 articles · Updated February 9, 2026

Recent Intelligence Reports

• CVE-2026-20230 — nvd.nist.gov · July 3, 2026
• Cisco finally confirms attackers exploiting Unified CM flaw — Bleepingcomputer · July 2, 2026
• CISA Warns of Cisco Unified CM Vulnerability Exploited in Attacks — Cybersecuritynews · June 26, 2026
• Cve 2026 20230 — horizon3.ai · June 25, 2026
• Cisco writes in its own security advisory — www.cisco.com · June 25, 2026
• Cisco Unified Communications flaw exploited by hackers — Computing · June 25, 2026
• Cisco Unified CM Flaw CVE-2026 — Securityaffairs.Co · June 24, 2026
• Cisco Unified CM Flaw Faces Active Exploitation After PoC Release — Mallory.Ai · June 24, 2026

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